Wood-turning machine



J. KERNES ET AL.

WOOD TURNING MACHINE. FILED DEC. I3, |919.

3 SHEETS-SHEET l.

Dec. 26, 1922. 1,439,900.

I'. KERNES ET AL.

I WOOD TURNING MACHINE.

FILED DEC. I3l I9I9. 3 SHEETS-.SHEET 2.

Dec. 26, 1922.

J. KERNES ET AL..

WOOD TURNINGl MACHINE. rlgfnnec. la. i919.

3 SHEETS-.SHEET 3 Patented Dec. 26, i922.

narran s Jar/insirnnivns Ann isniiir naaien, or unicaen, lrnnrnors, nssrenon 7ro :ananas rannurnoruaine oo., or ourense, rnnrnors, a ooiaronarion or innrivors; i

Application filed December 13, 1919. Serial hiee/1,719.

To all whom t may concern: i

Be it linoivn that We, JAMES lnnnns,` a citizen of the United States, residingmat Chicago, in the county oi'Cook and State of illinois, and lsnair liiinisri, a citizen of Russia, residing at Chicago, inthe county oit Cook and State ot illinois, have invented certain new and `useful Improvements in food-Turning- Machines, of vvliichthe :tollovvingis a full7 clear7 and exact description. Uur invention relates to Woodturning machines tor simultaneously boring, cutting and shaping Woodbloclrs to finished forni. Our invention `refers particularly to that class of machines in which a rotary tool supporting head is provided on which the various cutting or boring tools are mounted and secured as desired, and astoclr feed carriage is provided tor supporting' the bloc rs and tor carrying itin-to engagement With the tools. I

Among the important objectsoi our invention are `to provide an improved form of tool Supporting head and means for se curing various l tools thereto; to provide improved stoclr feed` carriage in'eofhanism with improved clamping means thereon for clainpingly supporting ahloclr to loe turned; to provide improved means for shitting the stool; iced 'carriage on its supporting hed;`

and in general to provide improved, simplied and more eiiicient mechanismot the class referred to. l.

A machine incorporating the various `teatures ci? our invention `is shown on the iccoinpanying drawings in Which-fM Fig. Ii. is a plan view,

l`ig, 2 is an end view7 Fig. is a side elevational view with the block supporting clamping mechanism. in vertical section on plane 3-3, Fig. 1,

Fig. 4- is a sectional view on plane ir-41:, Fig. 3 with the block removed,

Fig 5 is an enlarged front elevational` i 26 has been inserted on the ledge the view of the tool supporting block,

Fig. o is a side view of a section of said head showing the tool supporting inecha-` nism,

F 7 is a isectional View on `plane 7-7, Fig. 6, and v Fig. 8 is an enlarged diainetral sectional vieuT of a iinished piece or1 Work in the forni of a hase. l

The supporting structure for the operative parts oi the machine is showny in the `with supported blocks.

`the head 16. o f i form of a table lmounted on legs 11. `At

one end of the table is secured thebearing iraine 12 in which is journaled the shaft 13 parallel with and extending longitudinally of the table, the pulley 14; being on this `shaft and connectedhy helt l5 With a driving source such as a cou1iter-shai't. The `shaft at its inner .end serves to support the tool supportinghead 16. on which are mounted the various tools for boring, cutting9 shaping or otherwise forming blocks. y

Slidalole yonthe table is the stock feed carriage 17 in Whose base are-the channels 18 for receivingithe guide ridges 19 on the table. The carriage is held` to the tahle 1oy means oit 1oraclrets 20 fastened to the under side of the carriage at the sides thereot and engaging belowthe side i'ianges 2'1 or the table.` Mounted on the carriage at the inner end thereof is the stock supportii'ig` frame 22 Whose verticalivall 23 has an opening 2li iii airial alignment with the shaft 13 and otra diameter to permit the toolson the head 16 to pass therethrough in engagement ,Just below the lower edge not the opening 24 extends the horizontal ledgev 25 `for supporting a wood or" other block 26 behind the opening-24 in position to he acted upon by the tools 'on At the outer end of the carriage 17 isLthe standard 'frame 27 having the central lug 28 and the sidelugs 29 and 30. The cen-` tral lug 28 is threaded to receive a threaded shaft 31. which is turned by means oi? a hand vwheel 32 at the outer end thereof.` The' inner end oit' said shaft journaied in the` hub 33v extending 'from i the rectangular clamping plate 31A-i." Arnis and 36 ex-` tending' from tlieplate alt the sides thereof have slidingeiigageinent in the lugs 29 and 30 andserve to guide the plate and prevent itsy turning when the shaft 31 is rotated to shift said plate horizontally. After a hloclr `ein adjustable stop 37 assists in the proper positioning of the blocks with reference to` the opening3 the blocks being merely slid along the ledge 25 until further movement i is prevented hy the stop After insertion oi: a block `troni the feed carriage structure the carriage is shifted llO y naled in the bearing' frame 4:4.

toward the tool supporting'head 16 .to permit the* supported'l tools to engage' with and form the block. The lconstruction and arrangement of lthe tool 'supporting head is` clearly show-n in Figs.y 5, 6 and 7, The head is cylindrical and has a plurality of radially extending slots or pockets 38 in Vwhich the various tools t are inserted and secured.' We

have shownvordinary clamping straps S9-for securing the tool in the pocket, they`caprbeing secured to theedge across'the tool by of a base, for example the base of a lamp.' *Thisbase has the central' cylindrical open-` ing or passageway il and thisis formed by the drill 4t2 which is-secured in'an openingpro'vided `therefor in the headlG.v The drill is preferably longer ,than the ,tools in order that it will pass through'th'e"block 26 in advance of the tools and serve as ladditional support for theblock,` to keep vit centered. A recess i3 ispreferably provided' in the plate 34 for receiving the drill end. The 'heightv and width of the block Q6 are slightlyl greater than the longest operation diameter of thel tools t, in order' that sniiicient stocks (Fig. 8) `will remain between the wall 23 .and the plate 34k while the `block is being' cut and formedV'The block is out in the machine towithinthe thin section i ofcompletion (Fig) and the block isy then removed fromfthe machine and the surplus stock trimmed offby cutting along the section a` with a band saw or other tool. i y Y -We provide improved simple means for shifting the stock feed carriage 'along the table l0. In a bearing frame 44; secured to the under side' ofthe carriagelis journaled` a shaft 45 having'at its outer end the hub 46 from which extend ther grip spokes 47, The shaft also carries the pinion 4:8 which meshes with the gear 49 at thev outer end of the shaft 50 also jour At its in ner end theshaft 5() carries the pinion 5l which meshes' with the rack 52 securedto the under side ofthe flange 21 ofk the table. Upon turning of the hub 46 by means lof the grip spokes the pinion 51 `is rotated and travels along the rack 52, the feed carriage being thus shifted on the table 10.( Owing to the gear reduction the carriage is powerfullyand accurately shifted vand the block lQ6 canbe applied with precision to theforming tools. f

We thus produce a'veryeflicient machine in which blocks of wood .orr other material maybe quickly placed, clamped and then shifted to be cut, bored or otherwise shaped toa desired form by a number of tools applied on a' rotating tool carrying head.V lli/We do not of course desire to be Vlimited to the exactyconstructiom arrangement and operation shown and described as modifications 'to ass therethrou'oh into en'ao'ement with b 2D C a block supportedy by the apertured member, another bracket carried'by the sliding worksupport, a clampinghead carriedv by the bracket and provided to clamp the work between it and the vertically arranged aper` ytured member, a pinion cooperating with said rack, a pinionv actuating member also carried by the sliding work support,'ivliere by said work-support may be moved toward and away from saidcutting head.

2. In a` machine of the character `de'- scribed, the combination of supporting table, a yintatable cutting head carried by the table, a sliding member supported by said'table, an apertured bracket carried by thek sliding member, said aperture permit-- ting'the cutting head to pass through said bracket, another stationary bracket carried by the sliding member, `a clamping-head arranged between said brackets end carried by the last mentioned stationary bracket, means for moving the clamping head relatively to said brackets, meansv for pre-4 venting relative rotation'ol the clampingl head and said `brrwkets,` said means permitting movement of the clamping head relatively to said brackets, and means carried by the supporting` table and cooperating withthef'sliding member to move the sliding membertogether with the brackets and clamping head toward and away from the cut-tingliead. i

In witness whereof, we hereunto subscribe our names' this 6th day ofDecember A. D., 1919.

JAMES BERNES. SAAK KARISH.

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